As a side note spoken language phrase
Said to introduce something that you have just thought of.
We enjoyed a fantastic supper at the place you suggested - as a side note, I must give you the number of a similar one I know.
This is the largest book I have, and as a side note, it dates from the eighteenth century.
Last night, I went to the concert held by my school. Oh, and as a side note, I saw your brother there.
The origin of this phrase is not clear.
People tend to like forbidden or illegal things just because they are forbidden or illegal.
He must have believed that stolen fruit is the sweetest, and he, therefore, cheated on his partner.